Posterior Wall Fracture-Dislocation With Traumatic Abductor Avulsion.

The typical injury pattern of a posterior hip dislocation includes posterior wall fracture, capsular injury, and muscular strain. This report presents an example of a posterior wall acetabulum fracture-dislocation associated with complete hip abductor tendon and capsular avulsion from the femur. The patient was found to have an unstable hip despite a small posterior wall fragment due to the extensive soft tissue injury. This was repaired. The patient had improvement in function initially, but ultimately required repair of the hip abductor tendons. To the best of the authors' knowledge, this is the first case report of this specific injury in the literature. [Orthopedics. 2017; 40(1):e179-e181.].